CHAPEL HILL (AP) -- Tyler Hansbrough scored 26 points before suffering an ugly injury in the closing seconds of eighth-ranked North Carolina's 86-to-72 victory over 14th-ranked Duke.
The win clinched the top seed in the Atlantic Coast Conference tournament for the Tar Heels.
Senior Reyshawn Terry added 15 points for the Tar Heels (25-6, 11-5), who swept the regular-season series with the Blue Devils for the first time in 11 years.
Hansbrough's face became bloody after he leaped for a layup with just over 14 seconds left. After the ball left his hand he was struck in the face by Gerald Henderson's right elbow.
The officials reviewed the play and ejected Henderson.
Greg Paulus had 21 points before fouling out, and Henderson finished with 16 for the Blue Devils (22-9, 8-8).